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* cifs: remove extraneous newlines from cERROR and cFYI callsJeff Layton2012-07-231-5/+5
| | | | | | | | Those macros add a newline on their own, so there's not any need to embed one in the message itself. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
* cifs: when CONFIG_HIGHMEM is set, serialize the read/write kmapsJeff Layton2012-07-161-1/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Jian found that when he ran fsx on a 32 bit arch with a large wsize the process and one of the bdi writeback kthreads would sometimes deadlock with a stack trace like this: crash> bt PID: 2789 TASK: f02edaa0 CPU: 3 COMMAND: "fsx" #0 [eed63cbc] schedule at c083c5b3 #1 [eed63d80] kmap_high at c0500ec8 #2 [eed63db0] cifs_async_writev at f7fabcd7 [cifs] #3 [eed63df0] cifs_writepages at f7fb7f5c [cifs] #4 [eed63e50] do_writepages at c04f3e32 #5 [eed63e54] __filemap_fdatawrite_range at c04e152a #6 [eed63ea4] filemap_fdatawrite at c04e1b3e #7 [eed63eb4] cifs_file_aio_write at f7fa111a [cifs] #8 [eed63ecc] do_sync_write at c052d202 #9 [eed63f74] vfs_write at c052d4ee #10 [eed63f94] sys_write at c052df4c #11 [eed63fb0] ia32_sysenter_target at c0409a98 EAX: 00000004 EBX: 00000003 ECX: abd73b73 EDX: 012a65c6 DS: 007b ESI: 012a65c6 ES: 007b EDI: 00000000 SS: 007b ESP: bf8db178 EBP: bf8db1f8 GS: 0033 CS: 0073 EIP: 40000424 ERR: 00000004 EFLAGS: 00000246 Each task would kmap part of its address array before getting stuck, but not enough to actually issue the write. This patch fixes this by serializing the marshal_iov operations for async reads and writes. The idea here is to ensure that cifs aggressively tries to populate a request before attempting to fulfill another one. As soon as all of the pages are kmapped for a request, then we can unlock and allow another one to proceed. There's no need to do this serialization on non-CONFIG_HIGHMEM arches however, so optimize all of this out when CONFIG_HIGHMEM isn't set. Cc: <stable@vger.kernel.org> Reported-by: Jian Li <jiali@redhat.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
* CIFS: Move get_next_mid to ops structPavel Shilovsky2012-06-011-4/+4
| | | | | | Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <sfrench@us.ibm.com>
* CIFS: Move add/set_credits and get_credits_field to ops structurePavel Shilovsky2012-05-231-5/+5
| | | | | | | Acked-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <sfrench@us.ibm.com>
* CIFS: Move protocol specific part from cifs_readv_receive to ops structPavel Shilovsky2012-05-231-27/+7
| | | | | | | Acked-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <sfrench@us.ibm.com>
* CIFS: Move header_size/max_header_size to ops structurePavel Shilovsky2012-05-231-3/+4
| | | | | | | Acked-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: Include backup intent search flags during searches {try #2)Shirish Pargaonkar2012-05-171-7/+5
| | | | | | | | | | | | | | | | | | As observed and suggested by Tushar Gosavi... --------- readdir calls these function to send TRANS2_FIND_FIRST and TRANS2_FIND_NEXT command to the server. The current cifs module is not specifying CIFS_SEARCH_BACKUP_SEARCH flag while sending these command when backupuid/backupgid is specified. This can be resolved by specifying CIFS_SEARCH_BACKUP_SEARCH flag. --------- Cc: <stable@kernel.org> Reported-and-Tested-by: Tushar Gosavi <tugosavi@in.ibm.com> Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: add refcounting to cifs_readdata structuresJeff Layton2012-05-161-0/+3
| | | | | | | | | This isn't strictly necessary for the async readpages code, but the uncached version will need to be able to collect the replies after issuing the calls. Add a kref to cifs_readdata and use change the code to take and put references appropriately. Signed-off-by: Jeff Layton <jlayton@redhat.com>
* cifs: abstract out function to marshal the iovec for readv receivesJeff Layton2012-05-161-63/+4
| | | | | | | | Cached and uncached reads will need to do different things here to handle the difference when the pages are in pagecache and not. Abstract out the function that marshals the page list into a kvec array. Signed-off-by: Jeff Layton <jlayton@redhat.com>
* cifs: make cifs_readdata_alloc take a work_func_t argJeff Layton2012-05-161-50/+0
| | | | | | | | We'll need different completion routines for an uncached read. Allow the caller to set the one he needs at allocation time. Also, move most of these functions to file.c so we can make more of them static. Signed-off-by: Jeff Layton <jlayton@redhat.com>
* fs/cifs: fix parsing of dfs referralsStefan Metzmacher2012-05-031-1/+5
| | | | | | | | | | | | | | | | The problem was that the first referral was parsed more than once and so the caller tried the same referrals multiple times. The problem was introduced partly by commit 066ce6899484d9026acd6ba3a8dbbedb33d7ae1b, where 'ref += le16_to_cpu(ref->Size);' got lost, but that was also wrong... Cc: <stable@vger.kernel.org> Signed-off-by: Stefan Metzmacher <metze@samba.org> Tested-by: Björn Jacke <bj@sernet.de> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: silence compiler warnings showing up with gcc-4.7.0Jeff Layton2012-03-311-12/+12
| | | | | | | | | | | | | | | | | | gcc-4.7.0 has started throwing these warnings when building cifs.ko. CC [M] fs/cifs/cifssmb.o fs/cifs/cifssmb.c: In function ‘CIFSSMBSetCIFSACL’: fs/cifs/cifssmb.c:3905:9: warning: array subscript is above array bounds [-Warray-bounds] fs/cifs/cifssmb.c: In function ‘CIFSSMBSetFileInfo’: fs/cifs/cifssmb.c:5711:8: warning: array subscript is above array bounds [-Warray-bounds] fs/cifs/cifssmb.c: In function ‘CIFSSMBUnixSetFileInfo’: fs/cifs/cifssmb.c:6001:25: warning: array subscript is above array bounds [-Warray-bounds] This patch cleans up the code a bit by using the offsetof macro instead of the funky "&pSMB->hdr.Protocol" construct. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: convert cifs_iovec_write to use async writesJeff Layton2012-03-231-1/+3
| | | | | Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru>
* cifs: call cifs_update_eof with i_lock heldJeff Layton2012-03-231-0/+2
| | | | | | | | cifs_update_eof has the potential to be racy if multiple threads are trying to modify it at the same time. Protect modifications of the server_eof value with the inode->i_lock. Signed-off-by: Jeff Layton <jlayton@redhat.com>
* cifs: abstract out function to marshal up the iovec array for async writesJeff Layton2012-03-231-10/+7
| | | | | | | | We'll need to do something a bit different depending on the caller. Abstract the code that marshals the page array into an iovec. Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru>
* cifs: allow caller to specify completion op when allocating writedataJeff Layton2012-03-231-3/+3
| | | | | | | | We'll need a different set of write completion ops when not writing out of the pagecache. Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru>
* cifs: add pid field to cifs_writedataJeff Layton2012-03-231-2/+2
| | | | | | | | We'll need this to handle rwpidforward option correctly when we use async writes in the aio_write op. Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru>
* cifs: add new cifsiod_wq workqueueJeff Layton2012-03-231-2/+2
| | | | | | | | | | ...and convert existing cifs users of system_nrt_wq to use that instead. Also, make it freezable, and set WQ_MEM_RECLAIM since we use it to deal with write reply handling. Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
* CIFS: Change mid_q_entry structure fieldsPavel Shilovsky2012-03-231-6/+6
| | | | | | | to be protocol-unspecific and big enough to keep both CIFS and SMB2 values. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
* CIFS: Separate protocol-specific code from cifs_readv_receive codePavel Shilovsky2012-03-231-20/+38
| | | | Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
* CIFS: Separate protocol-specific code from transport routinesPavel Shilovsky2012-03-231-11/+10
| | | | | | that lets us use this functions for SMB2. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
* CIFS: Introduce credit-based flow controlPavel Shilovsky2012-03-211-8/+5
| | | | | | | | | | and send no more than credits value requests at once. For SMB/CIFS it's trivial: increment this value by receiving any message and decrement by sending one. Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <sfrench@us.ibm.com>
* CIFS: Simplify inFlight logicPavel Shilovsky2012-03-211-3/+3
| | | | | | | | | by making it as unsigned integer and surround access with req_lock from server structure. Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <sfrench@us.ibm.com>
* CIFS: Respect negotiated MaxMpxCountPavel Shilovsky2012-03-201-2/+7
| | | | | | | | | | | Some servers sets this value less than 50 that was hardcoded and we lost the connection if when we exceed this limit. Fix this by respecting this value - not sending more than the server allows. Cc: stable@kernel.org Reviewed-by: Jeff Layton <jlayton@samba.org> Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <stevef@smf-gateway.(none)>
* CIFS: Rename *UCS* functions to *UTF16*Steve French2012-01-181-78/+84
| | | | | | | | to reflect the unicode encoding used by CIFS protocol. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Acked-by: Jeff Layton <jlayton@samba.org> Reviewed-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
* CIFS: Send as many mandatory unlock ranges at once as possiblePavel Shilovsky2011-10-241-0/+40
| | | | | | | | that reduces a traffic and increases a performance. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
* CIFS: Implement caching mechanism for posix brlocksPavel Shilovsky2011-10-241-4/+4
| | | | | | | | to handle all lock requests on the client in an exclusive oplock case. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
* CIFS: Fix error handling in cifs_readv_completePavel Shilovsky2011-10-211-1/+1
| | | | | | | | | | In cifs_readv_receive we don't update rdata->result to error value after kmap'ing a page. We should kunmap the page in the no error case only. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
* cifs: add cifs_async_readvJeff Layton2011-10-191-0/+359
| | | | | | | | | | | | | | | | | | ...which will allow cifs to do an asynchronous read call to the server. The caller will allocate and set up cifs_readdata for each READ_AND_X call that should be issued on the wire. The pages passed in are added to the pagecache, but not placed on the LRU list yet (as we need the page->lru to keep the pages on the list in the readdata). When cifsd identifies the mid, it will see that there is a special receive handler for the call, and use that to receive the rest of the frame. cifs_readv_receive will then marshal up a kvec array with kmapped pages from the pagecache, which eliminates one copy of the data. Once the data is received, the pages are added to the LRU list, set uptodate, and unlocked. Reviewed-and-Tested-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Jeff Layton <jlayton@redhat.com>
* cifs: add a callback function to receive the rest of the frameJeff Layton2011-10-191-2/+3
| | | | | | | | | | | | | | | In order to handle larger SMBs for readpages and other calls, we want to be able to read into a preallocated set of buffers. Rather than changing all of the existing code to preallocate buffers however, we instead add a receive callback function to the MID. cifsd will call this function once the mid_q_entry has been identified in order to receive the rest of the SMB. If the mid can't be identified or the receive pointer is unset, then the standard 3rd phase receive function will be called. Reviewed-and-Tested-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Jeff Layton <jlayton@redhat.com>
* cifs: Call id to SID mapping functions to change owner/group (try #4 repost)Shirish Pargaonkar2011-10-171-2/+2
| | | | | | | | | | | | | | | | | | | Now build security descriptor to change either owner or group at the server. Initially security descriptor was built to change only (D)ACL, that functionality has been extended. When either an Owner or a Group of a file object at the server is changed, rest of security descriptor remains same (DACL etc.). To set security descriptor, it is necessary to open that file with permission bits of either WRITE_DAC if DACL is being modified or WRITE_OWNER (Take Ownership) if Owner or Group is being changed. It is the server that decides whether a set security descriptor with either owner or group change succeeds or not. Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com> Signed-off-by: Steve French <smfrench@gmail.com>
* CIFS: Simplify byte range locking codePavel Shilovsky2011-10-131-2/+2
| | | | | | | | Split cifs_lock into several functions and let CIFSSMBLock get pid as an argument. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <smfrench@gmail.com>
* cifs: untangle server->maxBuf and CIFSMaxBufSizeJeff Layton2011-10-121-23/+9
| | | | | | | | | | | | | | | server->maxBuf is the maximum SMB size (including header) that the server can handle. CIFSMaxBufSize is the maximum amount of data (sans header) that the client can handle. Currently maxBuf is being capped at CIFSMaxBufSize + the max headers size, and the two values are used somewhat interchangeably in the code. This makes little sense as these two values are not related at all. Separate them and make sure the code uses the right values in the right places. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
* cifs: switch CIFSSMBQAllEAs to use memcmpJeff Layton2011-10-121-1/+1
| | | | | | | | ...as that's more efficient when we know that the lengths are equal. Reported-by: David Howells <dhowells@redhat.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
* cifs: fix possible memory corruption in CIFSFindNextJeff Layton2011-09-191-1/+2
| | | | | | | | | | | | | | | | | | | | The name_len variable in CIFSFindNext is a signed int that gets set to the resume_name_len in the cifs_search_info. The resume_name_len however is unsigned and for some infolevels is populated directly from a 32 bit value sent by the server. If the server sends a very large value for this, then that value could look negative when converted to a signed int. That would make that value pass the PATH_MAX check later in CIFSFindNext. The name_len would then be used as a length value for a memcpy. It would then be treated as unsigned again, and the memcpy scribbles over a ton of memory. Fix this by making the name_len an unsigned value in CIFSFindNext. Cc: <stable@kernel.org> Reported-by: Darren Lavender <dcl@hppine99.gbr.hp.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: remove unneeded variable initialization in cifs_reconnect_tconJeff Layton2011-07-311-1/+1
| | | | | | Reported-and-acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: fix compiler warning in CIFSSMBQAllEAsJeff Layton2011-07-311-5/+1
| | | | | | | | | | | | | The recent fix to the above function causes this compiler warning to pop on some gcc versions: CC [M] fs/cifs/cifssmb.o fs/cifs/cifssmb.c: In function ‘CIFSSMBQAllEAs’: fs/cifs/cifssmb.c:5708: warning: ‘ea_name_len’ may be used uninitialized in this function Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: fix name parsing in CIFSSMBQAllEAsJeff Layton2011-07-311-1/+7
| | | | | | | | | | | | | | | | | | The code that matches EA names in CIFSSMBQAllEAs is incorrect. It uses strncmp to do the comparison with the length limited to the name_len sent in the response. Problem: Suppose we're looking for an attribute named "foobar" and have an attribute before it in the EA list named "foo". The comparison will succeed since we're only looking at the first 3 characters. Fix this by also comparing the length of the provided ea_name with the name_len in the response. If they're not equal then it shouldn't match. Reported-by: Jian Li <jiali@redhat.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: Pavel Shilovsky <piastryyy@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] Rename three structures to avoid camel caseSteve French2011-05-271-83/+83
| | | | | | | | | | secMode to sec_mode and cifsTconInfo to cifs_tcon and cifsSesInfo to cifs_ses Signed-off-by: Steve French <sfrench@us.ibm.com>
* Fix extended security auth failureSteve French2011-05-271-11/+6
| | | | | | | | | | | | Fix authentication failures using extended security mechanisms. cifs client does not take into consideration extended security bit in capabilities field in negotiate protocol response from the server. Please refer to Samba bugzilla 8046. Reported-and-tested by: Werner Maes <Werner.Maes@icts.kuleuven.be> Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* CIFS: Add rwpidforward mount optionPavel Shilovsky2011-05-271-5/+12
| | | | | | | | | | | | | | | | | | Add rwpidforward mount option that switches on a mode when we forward pid of a process who opened a file to any read and write operation. This can prevent applications like WINE from failing on read or write operation on a previously locked file region from the same netfd from another process if we use mandatory brlock style. It is actual for WINE because during a run of WINE program two processes work on the same netfd - share the same file struct between several VFS fds: 1) WINE-server does open and lock; 2) WINE-application does read and write. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <sfrench@us.ibm.com>
* CIFS: Use pid saved from cifsFileInfo in writepages and set_file_sizePavel Shilovsky2011-05-261-7/+26
| | | | | | | | | We need it to make them work with mandatory locking style because we can fail in a situation like when kernel need to flush dirty pages and there is a lock held by a process who opened file. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: add cifs_async_writevJeff Layton2011-05-251-0/+236
| | | | | | | | | | | Add the ability for CIFS to do an asynchronous write. The kernel will set the frame up as it would for a "normal" SMBWrite2 request, and use cifs_call_async to send it. The mid callback will then be configured to handle the result. Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: add ignore_pend flag to cifs_call_asyncJeff Layton2011-05-231-1/+1
| | | | | | | | | | The current code always ignores the max_pending limit. Have it instead only optionally ignore the pending limit. For CIFSSMBEcho, we need to ignore it to make sure they always can go out. For async reads, writes and potentially other calls, we need to respect it. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: make cifs_send_async take a kvec arrayJeff Layton2011-05-231-2/+4
| | | | | | | | | | We'll need this for async writes, so convert the call to take a kvec array. CIFSSMBEcho is changed to put a kvec on the stack and pass in the SMB buffer using that. Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: keep BCC in little-endian formatJeff Layton2011-05-191-30/+32
| | | | | | | | | | | | | | | | | | | | | | | This is the same patch as originally posted, just with some merge conflicts fixed up... Currently, the ByteCount is usually converted to host-endian on receive. This is confusing however, as we need to keep two sets of routines for accessing it, and keep track of when to use each routine. Munging received packets like this also limits when the signature can be calulated. Simplify the code by keeping the received ByteCount in little-endian format. This allows us to eliminate a set of routines for accessing it and we can now drop the *_le suffixes from the accessor functions since that's now implied. While we're at it, switch all of the places that read the ByteCount directly to use the get_bcc inline which should also clean up some unaligned accesses. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* consistently use smb_buf_length as be32 for cifs (try 3)Steve French2011-05-191-58/+65
| | | | | | | | | | | | | | | | | | | There is one big endian field in the cifs protocol, the RFC1001 length, which cifs code (unlike in the smb2 code) had been handling as u32 until the last possible moment, when it was converted to be32 (its native form) before sending on the wire. To remove the last sparse endian warning, and to make this consistent with the smb2 implementation (which always treats the fields in their native size and endianness), convert all uses of smb_buf_length to be32. This version incorporates Christoph's comment about using be32_add_cpu, and fixes a typo in the second version of the patch. Signed-off-by: Steve French <sfrench@us.ibm.com> Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: fix comment in validate_t2Jeff Layton2011-05-191-2/+3
| | | | | | | | | The comment about checking the bcc is in the wrong place. Also make it match kernel coding style. Reported-and-acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: cleanup: Rename and remove config flagsShirish Pargaonkar2011-05-191-4/+0
| | | | | | | | | Remove config flag CIFS_EXPERIMENTAL. Do export operations under new config flag CIFS_NFSD_EXPORT Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* Don't compile in unused reparse point symlink codeSteve French2011-05-191-2/+12
| | | | | | | | | | | | | | | | Recent Windows versions now create symlinks more frequently and they do use this "reparse point" symlink mechanism. We can of course do symlinks nicely to Samba and other servers which support the CIFS Unix Extensions and we can also do SFU symlinks and "client only" "MF" symlinks optionally, but for recent Windows we currently can not handle the common "reparse point" symlinks fully, removing the caller for this. We will need to extend and reenable this "reparse point" worker code in cifs and fix cifs_symlink to call this. In the interim this code has been moved to its own config option so it is not compiled in by default until cifs_symlink fixed up (and tested) to use this. CC: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
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